Multiple refactorings reformatted#193

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alyst wants to merge 41 commits into

StructuralEquationModels:develfrom

alyst:optim_ext_ram_reformatted

Commits on May 12, 2026

WIP SemImpliedState
Alexey Stukalov
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declare cov matrices symmetric

alyst
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Alexey Stukalov
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RAM: reuse sigma array
Alexey Stukalov
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RAM: optional sparse Sigma matrix
Alexey Stukalov
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ML: refactor to minimize allocs

alyst
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Alexey Stukalov
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add PackageExtensionCompat
Alexey Stukalov
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variance_params(SEMSpec)
Alexey Stukalov
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fixup docstring
Alexey Stukalov
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lavaan_model()
Alexey Stukalov
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test_grad/hess(): check that alt calls give same results
Alexey Stukalov
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start_simple(): code cleanup

alyst
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Alexey Stukalov
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start_simple(): start vals for lat and obs means
Alexey Stukalov
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observed_vars(RAMMatrices; order): rows/cols order

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Alexey Stukalov
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observed_var_indices(::RAMMatrices; order=:columns)
Alexey Stukalov
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move sparse mtx utils to new file

alyst
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Alexey Stukalov
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reorder_observed_vars!(spec) method

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Alexey Stukalov
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vech() and vechinds() functions

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Alexey Stukalov
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RAMMatrices(): ctor to replace params
Alexey Stukalov
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use `@printf` to limit signif digits printed

alyst
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Alexey Stukalov
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ML/FIML: workaround generic_matmul issue

alyst
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Alexey Stukalov
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BlackBoxOptim.jl backend support

alyst
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Alexey Stukalov
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non_posdef_return(v) -> non_posdef_objective(v)
Alexey Stukalov
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MeanStruct(ram)

alyst
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Alexey Stukalov
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SemObserved: fix mean_and_cov() call
Alexey Stukalov
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filter_used_params()
Alexey Stukalov
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param_indices(spec) method
Alexey Stukalov
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SemNorm: generalize SemRidge

alyst
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Alexey Stukalov
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add SemHinge
Alexey Stukalov
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add SemSquaredHinge
Alexey Stukalov
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quad.jl: optimized methods for X*A*X', X*X' etc
Alexey Stukalov
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trunc_eigvals(): use X_A_Xt()
Alexey Stukalov
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predict_latent_scores()

alyst
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Alexey Stukalov
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predict: add alpha regularization
Alexey Stukalov
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predict(model, scores)
Alexey Stukalov
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latent_scores(): allow specifying latent vars subset
Alexey Stukalov
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predict: add scoring methods docstrings
Alexey Stukalov
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predict: refactor calculation
Alexey Stukalov
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predict: add unit tests
Alexey Stukalov
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predict(): add prior_cov_alpha kwarg

Alexey Stukalov
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Copilot
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SemVariablesTransform
Alexey Stukalov
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score_basis_transform()
Alexey Stukalov
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